Are you defending this guy?
It seemed to me that Kilt was stating facts about the incident. Other than that, the officer disgraced himself, his department, and other officers. In this incident there is no excuse for “setting up a perimeter” while someone was actively killing students. What he needed to do was to give an update of his location while moving to engage the shooter so that other officers, who were watching a 20 minute delay, could know where the activity was occurring in real time.